1.\" $OpenBSD: rdsetroot.8,v 1.2 2019/04/05 21:44:32 schwarze Exp $ 2.\" 3.\" Copyright (c) 2019 Theo de Raadt 4.\" 5.\" Permission to use, copy, modify, and distribute this software for any 6.\" purpose with or without fee is hereby granted, provided that the above 7.\" copyright notice and this permission notice appear in all copies. 8.\" 9.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 10.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 11.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 12.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 13.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 14.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 15.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 16.\" 17.Dd $Mdocdate: April 5 2019 $ 18.Dt RDSETROOT 8 19.Os 20.Sh NAME 21.Nm rdsetroot 22.Nd insert disk image into RAMDISK kernel 23.Sh SYNOPSIS 24.Nm rdsetroot 25.Op Fl dx 26.Ar kernel 27.Op Ar disk.fs 28.Sh DESCRIPTION 29The 30.Nm 31utility inserts the file 32.Ar disk.fs 33into the reserved space inside a RAMDISK kernel. 34If 35.Ar disk.fs 36is not specified, 37.Nm 38reads from standard input. 39.Pp 40The options are as follows: 41.Bl -tag -width Ds 42.It Fl d 43Debug. 44.It Fl x 45Rather than inserting, extract the 46.Ar disk.fs 47image. 48The disk can be made accessible using 49.Xr vnconfig 8 , 50filesystems can be manipulated, and finally re-inserted into the RAMDISK kernel. 51.El 52.Sh SEE ALSO 53.Xr config 8 , 54.Xr disklabel 8 , 55.Xr vnconfig 8 56